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1. 发明授权

US4212849A Simultaneous extraction and recovery of uranium and vanadium from wet process acids 失效
标题翻译：从湿法酸中同时提取和回收铀和钒
公开(公告)号：US4212849A
公开(公告)日：1980-07-15
申请号：US869087
申请日：1978-01-13
申请人： Michael F. Lucid , Wilbert J. Robertson , Paul D. Bowerman
发明人： Michael F. Lucid , Wilbert J. Robertson , Paul D. Bowerman
IPC分类号： C22B3/38 , C22B34/22 , C22B60/02 , B01D11/00 , C01G56/00
CPC分类号： C22B3/0091 , C22B34/22 , C22B60/026 , Y02P10/234
摘要： A process for the simultaneous coextraction of uranium and vanadium from an aqueous acidic solution containing the same comprising contacting said aqueous acidic solution with an organic phase comprising a mixture of (a) an alkyl substituted diaryl phosphoric acid, (b) a trialkylphosphine oxide compound, and (c) an organic diluent whereby the uranium and vanadium are coextracted into the organic phase and thereafter recovering the uranium and vanadium from the organic phase.
摘要翻译：一种从含有它们的酸性水溶液同时共萃取铀和钒的方法，包括使所述酸性水溶液与含有（a）烷基取代的二芳基磷酸，（b）三烷基氧化膦化合物，和（c）有机稀释剂，其中铀和钒被共萃取到有机相中，然后从有机相中回收铀和钒。

2. 发明授权

US4327061A Method of stabilizing wet process phosphoric acid for solvent extraction 失效
标题翻译：稳定湿法磷酸进行溶剂萃取的方法
公开(公告)号：US4327061A
公开(公告)日：1982-04-27
申请号：US164583
申请日：1980-06-30
申请人： John A. Hermann , Michael F. Lucid
发明人： John A. Hermann , Michael F. Lucid
IPC分类号： C01B25/235 , C01G31/00 , C22B3/38 , C22B60/02 , B01D11/00 , C01B25/16 , C01G56/00
CPC分类号： C22B3/0052 , C01B25/235 , C01G31/003 , C22B60/026 , Y02P10/234
摘要： A method of stabilizing wet process phosphoric acid containing acid soluble impurities preparatory to solvent extraction for the recovery of valuable minerals. The acid is introduced into a vessel containing crystal seed bed of the impurities. A portion of the acid then is withdrawn and concentrated to effect supersaturation of the impurities contained therein. The supersaturated acid is returned to the vessel to mix with the remaining solution and cause additional impurities to precipitate. Thereafter, a portion of the solution, containing precipitated impurities, is withdrawn and introduced into a separator. In the separator, the solution is separated into an essentially solids-free stream containing unprecipitated soluble impurities and a solids-containing stream. The solids-free stream is admixed with an aqueous diluent to dilute it to a concentration level below the concentration at which the precipitable impurities are saturated therein but without a substantial change in phosphate concentration to thereby stabilize the acid stream. The stabilized acid is contacted with an organic extractant to selectively extract at least one of the remaining unprecipitated soluble impurities without substantial precipitation of any other of the remaining soluble impurities.
摘要翻译：一种稳定含有酸溶性杂质的含磷酸的方法，用于回收有价值的矿物质，用于溶剂萃取。将酸引入包含杂质晶体晶种床的容器中。然后将一部分酸取出并浓缩以实现其中所含杂质的过饱和。将过饱和酸返回到容器中与剩余的溶液混合并引起额外的杂质沉淀。此后，将含有析出的杂质的一部分溶液取出并引入分离器中。在分离器中，将溶液分离成含有未沉淀的可溶性杂质和含固体物流的基本上不含固体的物流。将无固体物流与水性稀释剂混合以将其稀释至低于其中可沉淀杂质饱和的浓度的浓度水平，但磷酸盐浓度没有显着变化，从而稳定酸流。使稳定化的酸与有机萃取剂接触以选择性提取剩余的未沉淀的可溶性杂质中的至少一种，而不会使任何其它剩余的可溶性杂质基本上沉淀。

3. 发明授权

US4241027A Reductive stripping process for the recovery of either or both uranium and vanadium 失效
标题翻译：用于回收铀和钒中的一种或两种的还原汽提过程
公开(公告)号：US4241027A
公开(公告)日：1980-12-23
申请号：US961194
申请日：1978-11-16
申请人： Paul D. Bowerman , Michael F. Lucid
发明人： Paul D. Bowerman , Michael F. Lucid
IPC分类号： C22B3/26 , C22B3/38 , C22B34/22 , C22B60/02 , C01G43/02 , C01G31/00
CPC分类号： C22B3/0005 , C22B3/0066 , C22B3/0087 , C22B34/22 , C22B60/026 , Y02P10/234
摘要： A process for the reductive stripping of an organic phase containing either or both uranium and vanadium. Said process comprising contacting said organic phase containing either or both uranium in the hexavalent state and vanadium in the pentavalent state with an aqueous solution containing a predetermined quantity of trivalent vanadium to reduce either or both the uranium and vanadium to a lower valence state which is not soluble in said organic phase. The reduced uranium and vanadium separate from the organic phase and collect in the aqueous solution from which it may be subsequently recovered. The process of this invention yields an aqueous strip solution containing fewer contaminates comprising undesirable alkali metals such as sodium and the like than other known chemical stripping processes. Further, the process limits the quantity of ferrous ions present in the system to alleviate the problem of sludge formation in subsequent treatment of the wet process acid to produce phosphate fertilizer.
摘要翻译：用于还原汽提含有铀和钒中的一种或两种的有机相的方法。所述方法包括将含有六价铀中的一种或两种或两种以五价态的钒的有机相与含有预定量的三价钒的水溶液接触以将铀和钒中的任一种或两者还原为低价态可溶于所述有机相。还原的铀和钒与有机相分离并收集在可以随后回收的水溶液中。本发明的方法得到的含水条带溶液含有比其它已知的化学剥离方法更少的含有不需要的碱金属如钠等的污染物。此外，该方法限制了系统中存在的亚铁离子的量，以减轻随后的湿法酸处理产生磷酸盐肥料时污泥形成的问题。

4. 发明授权

US4427640A Sequential process for extraction and recovery of vanadium and uranium from wet process acids 失效
标题翻译：从湿法酸提取和回收钒和铀的顺序过程
公开(公告)号：US4427640A
公开(公告)日：1984-01-24
申请号：US194444
申请日：1980-10-06
申请人： P. David Bowerman , Michael F. Lucid
发明人： P. David Bowerman , Michael F. Lucid
IPC分类号： C01G31/00 , C01G43/00 , C22B3/38 , C22B60/02
CPC分类号： C01G43/00 , C01G31/003 , C22B3/0052 , C22B3/0091 , C22B60/026 , Y02P10/234
摘要： A process for preferentially extracting and recovering vanadium and uranium from wet process acids. The wet process acid first is contacted with a neutral organo-phosphorus compound to extract the vanadium values. The resulting loaded organic phase is separated from the wet process acid due to immiscibility of the acid and organic phases. The vanadium values then are separated from the organic phase by stripping. The raffinate separated from the first organic extractant then is contacted with a second organic extractant comprising a dialkylphosphoric acid and a neutral organo-phosphorus compound to extract the uranium values. The resulting loaded organic phase is separated from the wet process acid due to immiscibility of the acid and organic phases. The organic phase is stripped with a reductive stripping solution and the stripping solution then is oxidized to convert the uranium values to the hexavalent oxidation state. The oxidized solution then is contacted with another organic extractant to reextract the uranium to thereby concentrate the uranium product which then is stripped from the organic product with ammonium carbonate to form ammonium uranyl carbonate.
摘要翻译：从湿法酸中优先提取和回收钒和铀的方法。首先将湿法酸与中性有机磷化合物接触以提取钒值。由于酸和有机相的不混溶，所得负载的有机相与湿法酸分离。然后通过汽提将钒值与有机相分离。然后将与第一有机萃取剂分离的萃余液与包含二烷基磷酸和中性有机磷化合物的第二有机萃取剂接触以提取铀值。由于酸和有机相的不混溶，所得负载的有机相与湿法酸分离。有机相用还原汽提溶液汽提，然后将汽提溶液氧化，将铀值转化为六价氧化态。然后将氧化溶液与另一种有机萃取剂接触以再提取铀，从而浓缩铀产物，然后用碳酸铵从有机产物中汽提出铀产物，形成碳酸铀酰铵。

5. 发明授权

US4886118A Conductively heating a subterranean oil shale to create permeability and subsequently produce oil 失效
标题翻译：导电加热地下油页岩以产生渗透性并随后产生油
公开(公告)号：US4886118A
公开(公告)日：1989-12-12
申请号：US157349
申请日：1988-02-17
申请人： Peter Van Meurs , Eric P. De Rouffignac , Harold J. Vinegar , Michael F. Lucid
发明人： Peter Van Meurs , Eric P. De Rouffignac , Harold J. Vinegar , Michael F. Lucid
IPC分类号： E21B36/04 , E21B43/24 , E21B43/30
CPC分类号： E21B43/30 , E21B36/04 , E21B43/2405
摘要： Shale oil is produced from a subterranean interval of oil shale, where the interval is initially substantially impermeable and contains a specified grade and thickness of oil shale. Said interval is conductively heated from borehole interiors which are kept hotter than about 600.degree. C. and are heated at a rate such that kerogen pyrolysis products formed within the oil shale create and flow through horizontal fractures which subsequently extend into fluid-producing wells that are positioned in specified locations.
摘要翻译：页岩油是从油页岩的地下区域产生的，其间隔最初基本上是不可渗透的，并且含有特定等级和厚度的油页岩。所述间隔从井壁内部导热加热，其保持比约600℃更高，并以使得在油页岩中形成的油母质热解产物产生并流过水平裂缝的速率加热，随后将其延伸到流体生产井位于指定位置。

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